DARK BASE 900 | Silver silent high-end PC cases from be quiet!
high-end
Article number: BG012
Silver
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900 Orange
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900 Black
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900 Silver
Further models
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Dark Base Pro 900 rev. 2
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Dark Base 700
Silver
Outstanding flexibility and silence
be quiet! Dark Base 900 Silver is the perfect case for all of those who expect the highest standards when it comes to modularity, compatibility and design
- Completely relocatable MB-tray with the possibility of an inverse layout
- Repositionable HDD tray for individual space requirements inside the case
- Three pre-installed, virtually inaudible be quiet! Silent Wings 3 PWM fans
- Full-circuit airflow system with noise-reducing vents all around the case
- Four areas for water cooling radiators up to 420mm on top, front, back and base
- Three years manufacturer’s warranty
- German product conception, design and quality control
Characteristics
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Highlights
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Technical data
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Press coverage
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Downloads
RELOCATABLE MOTHERBOARD TRAY
Flexibility for individual requirements
The decoupled motherboard tray adapts to suit individual requirements, being completely relocatable and usable as a test bench. You can adjust it to three different heights or install it alongside the left panel in an inverted layout with redefined airflow. It is fully compatible with E-ATX and XL-ATX motherboards.
SILENT WINGS 3
Impeccable cooling and silence
The three pre-installed Silent Wings 3 140mm PWM fans offer virtually inaudible operation. They are equipped with a smooth-running 6-pole motor, durable fluid-dynamic bearing and airflow-optimized fan blade design. The frame has funnel-shaped air inlets that generate high air pressure.
MODULAR HDD SLOTS
Generous space for your setups
The installation options are flexible thanks to repositionable single HDD slots. Supports up to 7 HDDs, 15 SSDs and 2 optical drives. The assembly and handling concept gives you modularity choices, empowering you to create systems that meet the highest of standards.
FULL CIRCUIT AIRFLOW SYSTEM
A silence concept by the silence experts
With its smart silence concept, Dark Base 900 Silver is the perfect case for the extreme requirements of overclocked systems and super silent water-cooled PCs. It can carry up to nine additional fans, up to four radiators and has noise-reducing vents all around the case that provide ultra-effective full circuit airflow.
ADJUSTABLE SIDE PANEL
Amazing versatility for your system
The cases side panel is equipped with an adjustable cover that flexibly suits your individual needs. You can close it for absolute silence, partly open it for more air intake, or completely remove it with the possibility to mount up to two additional fans.
FUNCTIONAL I/O PORT
Convenient features for everyone
The front I/O port offers perfect compatibility for your high-end PC. Manual stepless fan controller supports up to three PWM and three 3-pin fans. 2x USB 3.2 Gen. 1, 2x USB 2.0, HD audio jacks.
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General data
Model | Dark Base 900 Silver |
ATX PS/2 | |
Motherboard compatibility | E-ATX / XL-ATX / M-ATX / Mini-ITX |
Installation of motherboards with backplate | ✓ |
Case size excl. stands (L x W x H), (mm) | — |
Case size incl. stands (L x W x H), (mm) | 577 x 243 x 585 |
Dimensions side panel window (L x W), (mm) | — |
Weight (kg) | 14.18 |
Color option | Silver |
USB 2.0 | 2 |
USB 3.2 Gen. 1 | 2 |
USB 3.2 Gen. 2 Type C | — |
HD Audio I/O | Mic + Audio |
Expansion slots | 8 |
Fan mounting locations | 12 |
Qi charger / Quick Charging Option | — |
Infographics
open all / close all
Top cover | ABS / Aluminum |
Side panel | ABS / Steel |
Side panel window | — |
Front panel | ABS / Aluminum |
Stands | ABS |
5. 25 bays | 2 |
3.5 slots (max.) | 7 |
3.5 slots (scope of delivery) | 7 |
2.5 slots (max.) | 15 |
2.5 slots (scope of delivery) | 15 |
Fan @ top | — | |
Fan @ front | 2x Silent Wings 3 140mm Silent Wings 3 140mm PWM / 12V (rpm) | 1000 |
Noise level @ 100% dB(A)) | 15.5 | |
Airflow @ 100% CFM / m3/h) | 59.5 / 101.09 | |
PWM / 12V (mm h3O) | 1.08 | |
HDD cage (in height of graphics card) removed (mm) | 472 |
Top panel insulation mats | — |
Front panel insulation mats | ✓ |
Side panel insulation mats | ✓ |
Anti-vibration decoupled PSU | ✓ |
Anti-vibration decoupled motherboard-tray | ✓ |
Front | 1 |
Bottom | 1 |
Side panel | 2 |
Screw set (Drives/Motherboard) | ✓ | |
Rubber rail (pcs.) | — | |
Standoff (pcs.) | 3 (for E-HDD slot cover (pcs.) | — |
Upper fan bracket (pcs.) | 1 | |
HDD panel rubber grommet (pcs.) | 1 | |
SSD bracket for 1 — How to Make a Motherboard Tray from Scratch3 — Making the Tray Itself
One of the points that definitely crosses the mind of folks wishing to jump into the territory of making a case from scratch, is definitely «How do I make everything line up?» It’s an important point to consider, since not having mounting holes line up or components fit into spaces is a real pain. There’s a lot to think about when designing a case from scratch, or even just modding an existing chassis in perhaps a more extreme way, because it’s easy to miss details or make mistakes. One classic modding method is to use a donor chassis for this. You take an existing case and simply cut out the motherboard tray and I/O area. The handy thing about this method is you know things will fit and the donor case can be any cheap offering you have to hand. But what if you want to go a step further? Sometimes, trying to add a donor tray just becomes a pain and other times won’t work at all. This guide should hopefully help out there. Whilst making a set of mounting points for a motherboard is easy, the real lesson here is how to work with the official specifications — it’s a way of thinking. As you likely know, PC components conform to a number of official spec lists, most commonly ATX, mATX and mini-ITX, plus a handful of others for less common form factors and specific components like power supplies, etc. You can find PDF versions of the official Spec sheets over at FormFactors.org But why bother working to these convoluted documents when you can just measure from hardware? Well, for me at least, it’s that you get options. Not only can you know the exact dimensions and mounting-hole placements, you can find out things like the gaps between PCIe slots, the size and position of I/O shield cutouts, sizes and layouts of power supplies — you name it. This is immensely powerful when designing a mod, it allows you to push forward and plan ahead with confidence. That, in turn, allows the prospect of more advanced or exciting ideas in the future. For this guide I’m sticking to just the motherboard mounting holes. I’ve prepared a bunch of 3D and 2D files based on the various specifications that you can download HERE. Inside you’ll have a Fusion 360 3D file containing ATX, mATX and mini-ITX motherboards, along with 2D DXF and PDF files for printing/inserting into other programs. Whilst I decided not to include things like the PCIe card height or the motherboard I/O cutouts, I have added the PCIe slot locations to the files, which should make it easier to add things later yourself. If you want additional information, it’s all in the specifications, and having an accurate version of the board layout should make it much simpler. Link to Downloadable Files1 — How to Make a Motherboard Tray from Scratch3 — Making the Tray Itself RELATED ARTICLES
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